Abstract: Methods and apparatuses for performing article singulation are provided. An article singulator can include an intake conveyor, an out-take conveyor, and multiple intermediate conveyors. The intake conveyor can receive multiple articles and convey the articles to the multiple intermediate conveyors. Further, the out-take conveyor may convey singulated articles from amongst the multiple articles (e.g. to an outfeed). Further, the multiple intermediate conveyors may include successive conveyors to convey the articles and provide the singulated articles to the out-take conveyor. In some examples, each successive conveyor of the multiple intermediate conveyors may be positioned at a lower level than a preceding conveyor. Further, each successive conveyor can convey the articles in a different direction and at a different speed than a preceding conveyor such that the articles are singulated upon conveyance by the article singulator.

Abstract: Implementations disclose an access control mechanism for peer-to-peer sharing technology. A method includes receiving, by a processing device of a first user device, an encrypted media item and a wrapped key from a second user device, wherein the wrapped key comprises content masked from the first user device; transmitting, by the first user device, the wrapped key and a request to a media server to determine whether the first user device is authorized to play the encrypted media item; receiving, from the media server, a response indicating the first user device is authorized to play the encrypted media item, the response comprising a cryptographic key derived from the wrapped key; and decrypting the encrypted media item using the cryptographic key.

Abstract: A luminaire includes a housing defining an interior volume. The luminaire also includes a lamp within the interior volume and configured to emit light. Additionally, the luminaire includes a wireless antenna positioned within the interior volume, configured to transmit or receive a wireless signal along a first direction, and configured to be operatively coupled to an access point. The wireless antenna can be entirely within the interior volume. The luminaire can include a first reflective surface within the interior volume and configured to redirect the wireless signal. The lamp can be configured to be electrically coupled to a power inserter that powers the access point.

Abstract: Apparatus including a robotically controlled end effector having a compliant nosepiece that forms plies of a material onto contoured surfaces of a tool. The end effector includes a plurality of individually controllable rotary actuators which respectively control the position and compliancy of individual sections of the nosepiece in order to better conform the plies the contoured tool surfaces.

Abstract: A centrifugal compressor is provided. The centrifugal compressor includes a housing and a rotatable assembly mounted for rotation about an axis within the housing. The rotatable assembly includes an impeller forming part of a compressor stage. A first air intake is located at a first end of the apparatus, the first air intake providing an air source for the compressor stage and a second air intake is located at a second end of the apparatus. A thrust plate is attached to the rotatable assembly, the thrust plate including at least one interior channel so that air entering the second air inlet passes through the at least one interior channel.

Abstract: Technology for a diversity bi-directional repeater is disclosed. The diversity bi-directional repeater can include a first interface port, a second interface port, a 1st first-direction signal amplification and filtering path communicatively coupled between the first interface port and the second interface port, and a 1st second direction signal amplification and filtering path communicatively coupled between the first interface port and the second interface port. The diversity bi-directional repeater can further include a third interface port, a fourth interface port, a 2nd first-direction signal amplification and filtering path communicatively coupled between the third interface port and the fourth interface port, and a 2nd second direction signal amplification and filtering path communicatively coupled between the third interface port and the fourth interface port.

Abstract: A binaural hearing system includes a first hearing device and a second hearing device, each of which comprising: an input transducer; a transducer audio signal processor configured to provide a processed input transducer audio signal; an ear canal microphone; an ear canal audio signal processor configured to provide a processed ear canal audio signal; a first signal combiner configured to combine the processed input transducer audio signal with the processed ear canal audio signal to obtain an output transducer audio signal; a signal level detector configured to determine a signal level of (1) the output transducer audio signal or (2) an audio signal included in formation of the output transducer audio signal; and an output transducer; wherein the binaural hearing system further comprises a binaural excessive level detector connected to the first hearing device's signal level detector and the second hearing device's signal level detector.

Abstract: In one embodiment, an apparatus may include a first receiver and a second receiver, wherein the first receiver's first end is substantially cylindrical and wherein the first receiver's second end includes a first clamp, wherein the second receiver's first end is substantially cylindrical and wherein the second receiver's second end includes a second clamp, wherein the first receiver and the second receiver are detachably attached to one another via one or more first securing objects positioned on the first clamp and on the second clamp, and wherein at least one tightening clamp resides on the first receiver's first end and on the second receiver's first end.

Abstract: An apparatus may include: a body defining a flow path; an inlet to the flow path; an outlet to the flow path; a test coupon at least partially disposed within the flow path; a sealing element disposed between the test coupon and the body; and a current source electrically coupled to the test coupon, wherein the inlet and the outlet are in fluid communication through the flow path, and wherein the sealing element electrically insulates the body and the test coupon.

Abstract: An automated kitchen assistant system inspects a food preparation area in the kitchen environment using a novel sensor combination. The combination of sensors includes an Infrared (IR) camera that generates IR image data and at least one secondary sensor that generates secondary image data. The IR image data and secondary image data are processed to obtain combined image data. A trained convolutional neural network is employed to automatically compute an output based on the combined image data. The output includes information about the identity and the location of the food item. The output may further be utilized to command a robotic arm, kitchen worker, or otherwise assist in food preparation. Related methods are also described.

Abstract: A food preparation system is configured to enhance the efficiency of food preparation operations in a commercial kitchen by displaying instructions on a surface in the kitchen work area. The food preparation system includes a plurality of cameras aimed at a kitchen workspace for preparing the plurality of food items and a processor operable to compute an instruction for a kitchen worker to perform a food preparation step based on one or more types of information selected from order information, recipe information, kitchen equipment information, data from the cameras, and food item inventory information. A projector in communication with the processor visually projects the instruction onto a location in the kitchen workspace for the kitchen worker to observe. Related methods for projecting food preparation instructions are described.

Abstract: A system for distributing wireless networking components in a venue. The system includes panels that define a floor surface. The panels each have a planar configuration with an upper surface opposite a lower surface. The panels include a material that is transparent to radio waves, and the panels define a storage space below the panels and the storage space may be used to store and distribute wireless networking component.

Abstract: A transportable kitchen workcell includes a prefabricated enclosure, a robotic arm secured within the enclosure, one or more food appliances, a food prep area and storage, a sensor assembly, and a processor operable to command the robotic arm to autonomously prepare a completed entree from a wide variety of raw ingredients. A dispensing unit is arranged in the enclosure for dispensing the raw ingredients onto a target surface according to a selected flowrate and based on real time feedback measured during dispensing. The workcell is self-contained and is adapted to be conveniently moved (e.g., towed) to a new location. A wide range of entrees may be completed without rearranging or retooling the equipment in the workcell. New food items may be prepared by the workcell by simply selecting the applicable program, or by downloading an update corresponding to the new food item.

Abstract: A system for distributing wireless networking components in a venue. The system includes panels that define a floor surface. The panels each have a planar configuration with an upper surface opposite a lower surface. The panels include a material that is transparent to radio waves, and the panels define a storage space below the panels and the storage space may be used to store and distribute wireless networking component.

Abstract: A sleeve apparatus for protecting a robotic kitchen arm from contamination. The sleeve includes a proximal end, a distal end, a passageway extending from the proximal end to the distal end, and an exterior surface. The passageway has an effective diameter less than the effective diameter of the robotic kitchen arm such that the exterior surface of the sleeve apparatus is substantially fold-free when the robotic arm is in the extended configuration. Methods of cleaning a robotic kitchen arm are also described.

Abstract: In an embodiment, an injection simulation device is provided including a housing defining a channel, the housing comprising a proximal end and a distal end, a plunger comprising a plunger rod body having a proximal end and a distal end and a stopper disposed at the distal end of the plunger rod, the plunger movable proximally and distally within the channel; and a friction feature associated with the housing, the friction feature for interfacing with the plunger rod, wherein the plunger moves in a distal direction relative to the housing to simulate medicament delivery and in a proximal direction to reset the injection simulation device, wherein the friction feature optionally causes differential resistance on the plunger rod, when the plunger rod moves in either the distal or proximal direction.

Abstract: A technology is described for feedback cancellation in a multiband booster. The repeater can comprise: a server antenna port; a donor antenna port; a first direction amplification and filtering path coupled between the server antenna port and the donor antenna port; a second direction amplification and filtering path coupled between the server antenna port and the donor antenna port; a first-direction two-antenna feedback cancellation circuit coupled between the server antenna port and the donor antenna port to reduce antenna-to-antenna feedback for a single band in a first direction between a donor antenna and a server antenna; and a second-direction two-antenna feedback cancellation circuit coupled between the server antenna port and the donor antenna port to reduce antenna-to-antenna feedback for the single band in a second direction between the donor antenna and the server antenna.

Abstract: A technology is described for feedback cancellation in a multiband booster. The repeater can comprise: a server antenna port; a donor antenna port; a first direction amplification and filtering path coupled between the server antenna port and the donor antenna port; a second direction amplification and filtering path coupled between the server antenna port and the donor antenna port; a first-direction two-antenna feedback cancellation circuit coupled between the server antenna port and the donor antenna port to reduce antenna-to-antenna feedback for a single band in a first direction between a donor antenna and a server antenna; and a second-direction two-antenna feedback cancellation circuit coupled between the server antenna port and the donor antenna port to reduce antenna-to-antenna feedback for the single band in a second direction between the donor antenna and the server antenna.

Abstract: A technology is described for a repeater. A repeater can comprise a first port; a second port; a first-direction amplification and filtering path coupled between the first port and the second port; a multiplexer coupled between: the first-direction amplification and filtering path; and the second port; and a power amplifier (PA) coupled between the first port and the multiplexer. The repeater can further comprise an adjustable matching network coupled between the PA and the multiplexer, wherein the adjustable matching network is actively adjusted to match an impedance of an output of the PA at a selected channel over a frequency range for a first-direction signal with an impedance of an input of the multiplexer over the selected channel over the frequency range for a first-direction signal.

Abstract: A technology is described for a repeater. A repeater can comprise a first port; a second port; a first-direction amplification and filtering path coupled between the first port and the second port; a multiplexer coupled between: the first-direction amplification and filtering path; and the second port; and a power amplifier (PA) coupled between the first port and the multiplexer. The repeater can further comprise an adjustable matching network coupled between the PA and the multiplexer, wherein the adjustable matching network is actively adjusted to match an impedance of an output of the PA at a selected channel over a frequency range for a first-direction signal with an impedance of an input of the multiplexer over the selected channel over the frequency range for a first-direction signal.